Now, though, the British thespian has given birth and is ready to join the cast of Harry Potter and the Half-Blood Prince.
McCrory has been cast as the haughty, domineering Narcissa Malfoy in the upcoming film. A blond-haired, blue-eyed, pureblood witch, Narcissa is a fellow minion of Lord Voldemort, along with her sister Bellatrix, her husband Lucius and her son Draco.
Narcissa has a much more prominent, and crucial, role in the seventh book, Harry Potter and the Deathly Hallows.
McCrory played Prime Minister Tony Blair's wife in last year's Oscar-winning The Queen. Meanwhile, Harry Potter and the Half-Blood Prince is slated to open November 2008.